I didn't actually stay in, or visit Qui Nhon, but did stay two nights in a hostel on the beach nearby. It was called Life's a Beach and it was the best hostel I stayed in all trip. It had a private beach and a bar that served brilliant food with amazing views over the bay. Although it was originally going to be a stopover from Nha Trang to Hoi An, I stayed an extra night because it was so relaxing as opposed to the frantic days of driving and sightseeing that came before.
There are some hidden waterfalls nearby that you can walk to, but I preferred to just relax myself.
Two nights of full food, quite a lot of drink, and accomodation, only came to ~$35. If I ever return to Vietnam I'll be dropping in here.
@rkmkiosk It was pretty damn warm. It's supposedly cooler the further north you go but I experienced very similar temperatures throughout the entire trip with just a couple of outliers. It was mid to high 30s (celsius) pretty consistently. It's very very high humidity as well, so google was telling me it 'felt like' closer to 50 some days in Hanoi. That was particularly bad though, Id adjusted to 40ish after a couple of weeks.
The only exceptions were Dalat (a mountain city, reached as low as 18 at night, and Ha Giang near the Chinese border would rain a lot so it was closer to 20s than 30s. Still overall very warm though, I wore the same clothes just with a waterproof on, and the rain wasnt too bad because I was so hot!
How hot is it in june? Btw amazing itinerary